(1993). Journal for farming systems research- extension. Association for Farming Systems Research- Extension.
استشهاد بنمط شيكاغوJournal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.
MLA استشهادJournal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.